I have a theory.
We all begin with an IQ that tops 200, but with each successive smack on the head, our IQ drops. I watch as my daughter hits her head on tables, walls and the floor, and I can’t help but think that each time his noggin takes a lump, she’s losing a few IQ points in the process.

Perhaps this is why nerds and geeks tend to have the highest IQs. Unwilling to play contact sports and spending most of their time with their heads buried in books, they simply don’t suffer as many head injuries as a more active child.